exam
Maths Puzzle
Numerical Ability
1) Working alone, Coleen can paint a house in 2hr less than James. Working together, they can paint the house in 10hr. How long would it take James to paint the house?
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exam Other Question
find the LCD of
1 1
------- + ------
1 - x^2 x - 1
Please help me solve.
Thanks
Greatest common factor
-18a^3,3a^4